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Lake Boga granite quarry, Lake Boga, Swan Hill Rural City, Victoria, Australia

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Latitude & Longitude (WGS84): 35° 33' 6'' South , 143° 34' 53'' East
Latitude & Longitude (decimal): -35.5516666667, 143.581388889
 
"The original exposures of this granite were on Allotment 29, Section 4, Parish of Kunat Kunat, some 10km SSW of Lake Boga township in northwestern Victoria. The outcrops were only just exposed above the flat-lying Tertiary sands and nodular limestone. The first attempt at quarrying were between 1924 and 1927. Immediately after World War 2 quarrying recommenced and has been operating ever since.
Since the 1970's the quarry has been an important source of specimens for mineral collectors, especially for fine crystals of fluorapatite.
The Lake Boga granite is Devonian in age and belongs to the same suite as the nearest granites at Wycheproof and Pyramid Hill. The Lake Boga granite is extremely variable in texture in the uppermost 10 metres of its exposure, where the most common rock type is a pink to cream or grey equigranular leucocratic granite. Coarse patches and veins of pegmatite are widespread, with less common zones of banded aplite. Irregular masses of black schorl also occur. Miarolitic cavities up to 1 metre across and lined with fine crystals of smoky quartz, orthoclase,albite, muscovite and fluorapatite are associated with coarse pegmatite zones. Smaller cavities up to several centimetres across occur ia an equigranular phase of the granite, marked by coarse segregations of muscovite and biotite. Many of the phosphate minerals occur in the cavities in this rock type.
At deeper levels, the granite shows only occasional pegmatoidal zones and cavities." (Birch 1993)

Lake Boga Granite Quarry has 4 type locality minerals
Ulrichite 1988
Bleasdalite 1998
Lakebogaite 2007
Kunatite 2008

Mineral List



75 entries listed. 69 valid minerals. 4 (TL) - type locality of valid minerals.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

- Birch, W. D., Mumme, W. G. & Segnit, E. R. (1988): Ulrichite: a new copper calcium uranium phosphate from Lake Boga, Victoria, Australia. Australian Mineral. 3 (3), 125-131.
- Henry, D. A. and Birch, W. D. (1988): Sampleite and associated minerals from the Lake Boga granite quarry, Victoria, Australia. Austral. Mineral. 3, 135-148.
- Birch, W. D. (1993): Phosphate minerals in granite rocks. In Phosphate Minerals of Victoria. (Birch, W.D. and Henry, D.A., Eds). Special Publication N°3, The Mineralogical Society of Victoria, 5-39.
- Birch, W. D. (1996): Portlandite and other recent mineral discoveries in the granites at Lake Boga, Wycheproof and Pyramid Hill, Victoria. Australian J. of Mineralogy 2 (2), 47-50.
- Birch, B., Pring, A., Kolitsch, U. (1999) Bleasdaleite, (Ca,Fe 3+)2Cu5(Bi, Cu)(PO4)4(H2O,OH,Cl)13, a new mineral from Lake Boga, Victoria, Australia. Australian Journal of Mineralogy: 5: 69-75.
- Mills, S. J. (2004) Metanatroautunite (‘sodium autunite’) from the Lake Boga Granite, Victoria, Australian Journal of Mineralogy, 10 (1), 29–31.
- Mills, S. J., Birch, W. D., Maas, R., Phillips, D. & Plimer, I. R. (2008) Lake Boga Granite, northwestern Victoria: mineralogy, geochemistry and geochronology, Australian Journal of Earth Sciences, 55(3), 281–299.
- Mills, S. J., Birch, W. D., Kolitsch, U., Mumme, W. G. & Grey, I. E. (2008) Lakebogaite, CaNaFe3+2H(UO2)2(PO4)4(OH)2(H2O)8, a new uranyl phosphate with a unique crystal structure from Victoria, Australia, American Mineralogist, 93(4), 691–697.
- Birch, W. D. (2008) Victoria's Uranium secret, Australasian Science Magazine, September, 22-24.
- Mills, S. J., Birch, W. D., Kolitsch, U. & Sejkora, J. (2008) Kunatite, CuFe3+2(PO4)2(OH)2.4H2O, a new member of the whitmoreite group from Lake Boga, Victoria, Australia, Australian Journal of Mineralogy, 14(1), 3–12.
- Mills, S. J. & Birch, W. D. (2010) Uranmineralien aus dem Lake-Boga-Granit, Victoria, Australien. Mineralien-Welt, 21(3), 62–67. (In German)
- Mills, S. J., Birch, W. D. & Kampf, A. R. (2012) The crystal structure of metanatroautunite, Na[(UO2)(PO4)](H2O)3, from the Lake Boga granite, Victoria, Australia. American Mineralogist, 97(4), 735–738.

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